What is a comparator ?

What is a comparator ?
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1 Answer

Answer :

A comparator is a type of circuit that compares signal or voltage levels.
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Related questions

What happens to a comparator when both inputs are equal?

Description : What happens to a comparator when both inputs are equal?

Last Answer : What you're talking about here is an op-amp configured in open loop mode - no feedback resistor, so the output swings + or -, generally in opposition to the higher value on the inputs. ... are completely equal, because of thermal variations, quantum effect, and other non-ideal aspects of a circuit.

In a series wound motor, the current passing through the field windings is also passing through the _____________. A. armature B. shunt field C. reactance comparator D. laminations

Description : In a series wound motor, the current passing through the field windings is also passing through the _____________. A. armature B. shunt field C. reactance comparator D. laminations

Last Answer : Answer: A

Essentially a satellite ___________ is a radio repeater in the sky A. transponder B. comparator C. duplexer D. billboard

Description : Essentially a satellite ___________ is a radio repeater in the sky A. transponder B. comparator C. duplexer D. billboard

Last Answer : A. transponder

What do you mean by comparator

Description : What do you mean by comparator

Last Answer : A comparator is a special combinational circuit designed primarily to compare the relative magnitude of two binary numbers.

Which one is used to determine the colour of petroleum products? (A) Colour comparator (B) Saybolt chromometer (C) Cleveland apparatus (D) None of these

Description : Which one is used to determine the colour of petroleum products? (A) Colour comparator (B) Saybolt chromometer (C) Cleveland apparatus (D) None of these

Last Answer : (A) Colour comparator

What are the characteristics of a comparator?

Description : What are the characteristics of a comparator?

Last Answer : 1.Speed of operation 2.Accuracy 3.Compatibility of the output

What are the applications of comparator?

Description : What are the applications of comparator?

Last Answer : 1.Zero crossing detector 2.Window detector 3.Time marker generator 4.Phase detector

What is a comparator?

Description : What is a comparator?

Last Answer : A comparator is a circuit which compares a signal voltage applied at one input of an opamp with a known reference voltage at the other input. It is an open loop op - amp with output + Vsat .

Differentiate Schmitt trigger and comparator.

Description : Differentiate Schmitt trigger and comparator.

Last Answer : comparator. 1. It compares the input signal with references voltage then yields the output voltage 2. It need not consist of feedback 3. comparator output need not to besquare wave Schmitt ... reference points namely UTP<P. 2. It employs positive feedback 3. Its output is square wave.

Which of the following circuit is used as a 'Memory device' in computers? 1) Rectifier 2) Flip-Flop 3) Comparator 4) Attenuator

Description : Which of the following circuit is used as a 'Memory device' in computers? 1) Rectifier 2) Flip-Flop 3) Comparator 4) Attenuator

Last Answer : 2) Flip-Flop

Colour comparator is used to measure the (A) pH value (B) Electrode potential (C) Colour intensity (D) None of these

Description : Colour comparator is used to measure the (A) pH value (B) Electrode potential (C) Colour intensity (D) None of these

Last Answer : Option A

A controller essentially is a A. Sensor B. Clipper C. Comparator D. Amplifier

Description : A controller essentially is a A. Sensor B. Clipper C. Comparator D. Amplifier

Last Answer : C. Comparator

What are the functions of a converter-comparator group?

Description : What are the functions of a converter-comparator group?

Last Answer : The comparator compares the signal strengths from the receivers and the converter converts the frequency-shift rf signal into a tty set dc loop control signal.

What does a lighted LED indicate on a logic comparator?

Description : What does a lighted LED indicate on a logic comparator?

Last Answer : A difference in logic states between the reference IC and the IC under test.

Design and explain a comparator to compare two identical

Description : Design and explain a comparator to compare two identical

Last Answer : words. • Two numbers represented by A = A3A2A1A0 & B = B3B2B1B0 • If two numbers equal P = Ai Bi • Obtain the logic Expression. • Obtain the logic diagram.

What do you mean by comparator?

Description : What do you mean by comparator?

Last Answer : A comparator is a special combinational circuit designed primarily to compare the relative magnitude of two binary numbers.

The conversation speed of an analog to digital converter is maximum with the following technique. (A) Dual slope AD converter. (B) Serial comparator AD converter. (C) Successive approximation AD converter. (D) Parallel comparator AD converter.

Description : The conversation speed of an analog to digital converter is maximum with the following technique. (A) Dual slope AD converter. (B) Serial comparator AD converter. (C) Successive approximation AD converter. (D) Parallel comparator AD converter.

Last Answer : (D) Parallel comparator AD converter.

Which of the following circuit is used as 'Memory device' in computers ? (1) Rectifier (2) Flip-Flop (3) Comparator (4) Attenuator

Description : Which of the following circuit is used as 'Memory device' in computers ? (1) Rectifier (2) Flip-Flop (3) Comparator (4) Attenuator

Last Answer : Flip-Flop

Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Description : Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Last Answer : Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

State any two application of each of following i) Comparator ii) Zero Crossing Comparator

Description : State any two application of each of following i) Comparator ii) Zero Crossing Comparator

Last Answer : Application of Comparator:  1. Null detectors: A null detector is one that functions to identify when a given value is zero. Comparators can be a type of amplifier distinctively for null comparison ... detector controls the switching so that it occurs at close to zero voltage of the cycle.

In a control system, the comparator measures the difference between

Description : In a control system, the comparator measures the difference between (a) output and input (b) output of controller and system (c) actual and desired performance (d) input and error signal  

Last Answer : B

In successive approximation converter input to the comparator is through

Description : In successive approximation converter input to the comparator is through (A) DAC (B) Latch (C) Flip-flop (D) Sample and hold circuit

Last Answer : In successive approximation converter input to the comparator is through DAC 

The number of comparators required in a 3-bit comparator type analog to digital converter is

Description : The number of comparators required in a 3-bit comparator type analog to digital converter is  A) 2 B) 3 C) 7 D) 8 

Last Answer : Number of comparators =2^n -1= 2^3 -1=7

The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B.

Description : The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is  (A) 4 (B) 6 (C) 8 (D) 10

Last Answer : The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is 6

Which circuit is used as amplitude comparator?

Description : Which circuit is used as amplitude comparator?

Last Answer : Schmitt trigger circuit is used as amplitude comparator.

The number of comparators required in a 4 bit comparator type ADC is

Description : The number of comparators required in a 4 bit comparator type ADC is (A) 16 (B) 15 (C) 17 (D) 12

Last Answer : The number of comparators required in a 4 bit comparator type ADC is 15

A digital voltmeter uses an A/D converter which needs a start pulse, uses an analog comparator and has a...

Description : A digital voltmeter uses an A/D converter which needs a start pulse, uses an analog comparator and has a relatively fixed conversion time independent of the applied voltage. The A/D ... Successive Approximation Converter .b) Digital Ramp Converter c) Digital Slope Converter d) All the above

Last Answer : A digital voltmeter uses an A/D converter which needs a start pulse, uses an analog comparator and has a relatively fixed conversion time independent of the applied voltage. The A/D converter is : -  Successive Approximation Converter 

One input terminal of high gain comparator circuit is grounded and a ...

Description : One input terminal of high gain comparator circuit is grounded and a sinusoidal voltage is applied to the other input. The output of comparator will be___________.

Last Answer : One input terminal of high gain comparator circuit is grounded and a sinusoidal voltage is applied to the other input. The output of comparator will be a square wave.

What is the conductivity of molar ?

Description : What is the conductivity of molar ?

Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .

How do I purchase a product ?

Description : How do I purchase a product ?

Last Answer : From Alibaba you can purchase products by paying MASTER CARD or through bank.

What is an analog signal ?

Description : What is an analog signal ?

Last Answer : Signals whose values ​​change continuously are called analog signals. For example- voltage of electricity supplied to the house.

What is Zener Diod ?

Description : What is Zener Diod ?

Last Answer : Zener diode is a special type of diode which, like ordinary diode, not only conducts current in the forward direction , but also in the opposite direction if the voltage exceeds the level of breakdown ... diode is to use the shunt regulator and the voltage reference as the voltage of the circuit.

What is the multiplying factor of shunt ?

Description : What is the multiplying factor of shunt ?

Last Answer : Answer : The ratio of load or matte current to ammeter current is called shunt multiplying power.

What is ammeter shunt ?

Description : What is ammeter shunt ?

Last Answer : A small amount of radial coupling in parallel with the coil to increase the range of ammeter is called ammeter shunt.

What is short circuit current ?

Description : What is short circuit current ?

Last Answer : Answer : A fault in an electrical system whose current, before or after the current flows through the load, is combined with one or more phases of neutral current which causes more current to flow than normal. The current is called short circuit current.

What is a current limiting reactor ? How many types and what are they ?

Description : What is a current limiting reactor ? How many types and what are they ?

Last Answer : Answer : A current limiting reactor is basically an inductive coil which limits the short circuit current by providing inductive reactance when required. Types: 1. Based on the structure- a) Dry type ... reactor. Basbar reactors are again of 2 types- a) Ring system reactor b) Tiber system reactor

What is the method of diagnosing short circuit current ?

Description : What is the method of diagnosing short circuit current ?

Last Answer : There are three methods for determining short circuit current , namely- 1) Ohmic method 2) Per unit method 3.) Percentage reactance method.

What are symmetrical and asymmetrical faults ?

Description : What are symmetrical and asymmetrical faults ?

Last Answer : Symmetrical Fault: The same amount in each phase due to the float in the electrical system. The fault that causes hot current to flow is called semantic fault. Circuit breaker ratings are determined by ... through each fan is called an asymmetrical fault. The relay is set via asymmetrical font.

What is Basbar and Bas Kaplar ?

Description : What is Basbar and Bas Kaplar ?

Last Answer : Basbar : Basbar is basically a sheet or color of copper or aluminum. It is the job of the bus driver to deliver power to one or more lads with power from one or more cables. Bus ... is basically a combination of circuit breaker and isolator. There are fire proof walls around the bus coupler.

Why is the busbar sectionalized ?

Description : Why is the busbar sectionalized ?

Last Answer : Answer : If an error occurs in any part of the busbar, the operation of the entire busbar system will not stop. The maximum success of this system is due to the interconnection of different sections of the circuit and the smooth distribution in the outgoing circuit.

title : _

Description : title : _

Last Answer : Basbar is a type of copper and aluminum conductive sheet or mata rod , which collects electrical energy from one or more circuits and distributes that energy through one or more circuits.

Write different font names or different short circuit font names ?

Description : Write different font names or different short circuit font names ?

Last Answer : There are two main types of short circuit faults. Namely- 1. Semantic faults and 2. Asymmetrical font Symmetrical fault - a) Short circuit three phases together b) Short circuit asymmetrical fault with three ... result c) Double line to ground font d) Two phase one Circuit and third phase earth.

What is Electrical Fault ? What is the cause of the fault ?

Description : What is Electrical Fault ? What is the cause of the fault ?

Last Answer : Answer : Fault: When two or more conductors come in contact with each other while operating at normal voltage difference, the result is said to be organized. Causes of Fault: Faults are organized due to ... loss of line c) Lightning charge d) Voltage drop e) Loss of unbalance and stability etc.

What features should a switchgear have ?

Description : What features should a switchgear have ?

Last Answer : Switchgear should have the following characteristics- a) Sensitivity b) Detection ability c) Reliability d) High speed e) Durability. F) Expansion advantage g) Simplicity.

What are the components of switch gear ?

Description : What are the components of switch gear ?

Last Answer : The components of switch gear are: circuit breaker , relay , instrument transformer , housing , conductor etc.

What do you mean by switchgear ?

Description : What do you mean by switchgear ?

Last Answer : Answer : Switch gear does not mean a single corner object. It refers to the position of the electromagnetic system, including the connective , isolating , and maintenance equipment of normal activity .

What is an Earth Electrode ?

Description : What is an Earth Electrode ?

Last Answer : Puta metal part in the soil which connects to the soil is called earth electrode. Thank you all for today's electrical questions and answers.

What is Earthing Lead ?

Description : What is Earthing Lead ?

Last Answer : The wire that connects the earth continuity wire and the earth electrode is called the earthing lead.

What earthing is done in hilly areas ?

Description : What earthing is done in hilly areas ?

Last Answer : Sheet earthing is done in hilly areas. Shit electrodes are placed by digging trenches on the slopes of the hill.

What should be the size of rod earthing ?

Description : What should be the size of rod earthing ?

Last Answer : In case of iron or steel rod the diameter is 16 mm but in case of copper rod it is 12.5 mm. In both cases the length is at least 2.5 m. Is to be.